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Mixed powder for powder metallurgy

A technology of mixed powder and powder metallurgy, which is applied in lubricating compositions, metal processing equipment, transportation and packaging, etc., and can solve problems such as insufficient processability, inability to withstand, and easy damage

Active Publication Date: 2020-10-27
JFE STEEL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in general, green compacts before sintering are often brittle and have insufficient workability
That is, the green compact before sintering cannot withstand the stress applied to the jig during green processing or during cutting, and is easily damaged.

Method used

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  • Mixed powder for powder metallurgy
  • Mixed powder for powder metallurgy

Examples

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Embodiment

[0058] Hereinafter, although an Example demonstrates this invention more concretely, this invention is not limited to the following example.

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Abstract

The present invention provides a mixed powder for powder metallurgy having excellent green compact strength and extractability. The mixed powder for powder metallurgy contains iron-based powder and copolyamide, the amount of the copolyamide is 0.3-2.0 parts by mass relative to 100 parts by mass of the iron-based powder, and the melting point is 80-120°C.

Description

technical field [0001] The present invention relates to a mixed powder for powder metallurgy, and in particular to a mixed powder for powder metallurgy which is excellent in extractability and strength of a green compact when press-molded to form a compact. powder. Background technique [0002] Powder metallurgy is a technique for producing sintered parts such as mechanical parts by sintering the green compact after press-molding mixed powder containing iron-based powder and the like to obtain a green compact. In recent years, due to the advancement of powder metallurgy technology, complex-shaped sintered parts can be manufactured into near-net shapes with high dimensional accuracy, and powder metallurgy technology is being used in the manufacture of products in various fields. [0003] However, for sintered parts, when extremely strict dimensional accuracy is required, or when a horizontal hole shape, an undercut shape, or other highly complicated shapes are required, post...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/00B22F1/02B22F3/02C10M107/44C10M111/04C10M103/02C10N20/00C10N30/00C10N40/00C22C38/00B22F1/06B22F1/10B22F1/102B22F1/105B22F1/16
CPCB22F3/02C22C38/00B22F9/082C22C33/02B22F2998/10B22F2999/00C10M169/04C10M2201/041C10M2217/044C10M2201/05C10M2201/053C10N2020/06C10N2040/20C10N2050/08B22F1/102B22F1/16B22F1/06B22F1/10B22F1/105B22F3/10C10M103/02C10M107/44B22F2301/35C08K9/08B22F2003/023B22F3/16C08K3/04C08K3/08C08L77/00C10M125/02C10M111/04C10M2201/0413C10M2217/0443
Inventor 宇波繁平山従仕
Owner JFE STEEL CORP
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